Eisemon, Thomas Owen, and Yakov M. Rabkin. “Research As a Source of Differentiation in Academic Life”. Canadian Journal of Education Revue Canadienne De l’éducation, vol. 6, no. 2, Jan. 1981, pp. 117-31, https://cje.journals.publicknowledgeproject.org/cje/index.php/cje-rce/article/view/8103.